Hose-clamp.



A. L. P. PERRY.

HOSEA CLAMP.

APzLloATgoN FILED JULY 11, 1911.

1,036,324. 'Patented Aug. 20,1912.

jfa'gZ.

ABEL LAUBGN PARKER PERRY, 'DE' ROANOKE, VIRGINIA.

HOSE-CLAIJIP.

insonne.

Application filed July ll,

Specification of Letters Eatent.

ieri.

Patented fling.

Serial No. 637,928.

To @ZZ vifi/tom '15 fm (/q/ morera.

Be it known that l. Anni. li. i?. Panni', a

citizen of the llnited States, and a resident of Roanoke, in the county of lloanoke and State of Virginia, have made certain new and useful lmprovements in lioseetllamps, of which'the following is a speeilieation.

My invention relates to impi-ovements in hose Clamps, and it consists in the roinbinations, construetions, and arrange-,ments herein described and claimed.

An object of my invention is to provide a elainp which has a practically uniform bearingy surface around the entire hose.

A further object of my invention is to provide a device which .is devoid of any cutting edges such as tongues, or the like which are apt to ,injure thehose and to Cause it to wear"oiitso`oner thanit otherwise would.

@ther objects and advantages will appear in the following specification, and the novel features of the device will be particularly pointed out in the appended claim.

My invention is illustrated in the aecompanying drawings forming part of this application in which similar reference characters indicate like parts in the several views and in which- Figure l isa face view of a clamp eonstructed accordingl to my invention, Fig. 2 is an edge view thereof, Fig. 3 is a development of the main body portion, Fig. Ll is a section through the device on the line 4 4 of Fig, 3, Fig. 5 is a detail view showing,r a modilied forni of the end of the clamping member, Fig. G is a side view of the end of tlie Clamping member shown in Fig'. 5, Fig. 7 is a section along the line-7--7 of Fig. F 8 is a face view of a modified forni of `he device, an edge view of the deviee shown'in Fig. S, Fig. l() is a face view of'another modification, Fig. ll is an edge view of the form shown in F l0, Fig. l2 is a development of the main body portions shown in Figs. l0 and il, and Fig. 13 is a modified form of arrangement for' the ends of the body portion. L

Referring now `partieularly to Fig. 3, I have shown therein the development of the main body portion. rlhis is made preferably of spring metal such as spring brass or spring steel, and consists of a Central portion l having' enlarged ends 2 and 3 respectively. The end 8 is provided with perforations 3 and 3b, with a. \/-sliaped stamped portion 4, and

with a side iiange 5. The end 2 is provided portion 6 and with a side flange i'. ln unil; ing the clamp the body portion is coiled in two convolutions in the manner shown in Figs. l and rl"he oolt S is passedthrough one of the periprations or 2%" and through Q the perforation im. nut 9 may be serewed up so as to draw the elamp tighter. The flanges and T are bent downwari'lly, the

l'iange .being arranged to engage the inner convolution, 'and the flange to engage the same convolution on the other side. lThis holds the Central convolution in place. lt will be seen that the Central convolution is l with a perforation 2, a 'if-shaped stauipi'ffl of the hose, the outer ends of the second convolution being away from the hose. rThis `gives a uniform bearing surface on the entire hose, and there are no tongues or other'menibers to grip the hose and to tear it, as in other similar devices. @n each .Clamp it may be, neeessary to use a tool for holding' the ends of the elamp near eaeh other while the bolt o is being inserted and the nut screwed on. lt will be noted in Fig. l. that the portions It and (i provide fiat surfaces againstv which the sides of he tool .such as the jaws of a vise may be placed so as to force the ends together to permit the insertion of the bolt 8 and the subsequent tightening of the nut 9.

ln F 5, G and 7, l have shown a modified form for the ends. Thus instead of having` V-shaped portions 4 and (i stamped from the metal, a iiange l() is constructed from the metal as shown in Figs. t3 and '7. The flange l() serves the same purpose the V- shaped stamped portions land (3 in the form just deseribed.

ln Figs. 8 and i) the clamp is made of two eonvolutions of wire. 'lhus the convolution A is twisted back upon itself at a and a loop formed at a. Similarly the convolution B is twisted bael; upon itself at o, a loop bethrough the loops 7) and a and is held in positionby means of a nut D.

In Figs. l0, ll and l2, I have shown another moditieation. This Consists of a metal strip having redueed portions l and il, a central enlarged portion lll. and end portions V and V. The central portion is provided with a longitudinal slot 3X, while the end portions are. provided with the openings 4a, 1lb and 5, 5b, respectively. ln constructing the clamp the body portionis the one which is ,in Contact with the exterior' ing formed at o. The bolt- C is passed` wrapped or coiled so that the reduced portions I and H lie. side by side for nearly the entire circumference of the device. At the ends however the notched portion Voverlaps one end of the central portion 1H, while the portion lV'overlaps the other end of the portion HI. The eiect of this is to give the bearing surface of the clamp an almost continuous contact with\the outside of the hose, here being no vtongues or other surfaces to engage the hose so as to cut it. A bolt Vl' passes through the openings 4f and 5b and a nut VII is provided for drawing the two ends V and V together.

In Fig. 13, have shown a modification Y in which the ends IV and V are provided with .oli-set portions'x and 5", respectively. These ofi set portions iand 5X are for the purpose of aiording means for holding the ends together preparatory to passing a bolt through the ends, these 0E set portions serving the purpose of the vi-shaped stamped portions i and 6 described in connection with Fig. '1. 4 Besides having the advantage of gripping the hose around its entire eire insense .'.1 l curnerenee without any danger of cutting it, the clanipheing made of spring Inet-al,

will vopen up or yuncoii when the bolt is loosened so that it sides readiiy o from tne hose.

in a hose clamp, a body portion formed of a single piece of coiled metal and4 com-y "bent outwardly at an angle from the centra portion, said end portions having inwardly bent lugs arranged to engage the convolution of the body portion for holding the lat ter in place, said ends being provided with opposed lugs for permitting the ends^to be forced together, and means for forcing the bent up portions 'of the ends together.

anni) Linnen PARKER PERRY.

Witnesses t E. `W. POINDEXTER, Lo'rrm STEWART. 

